oracleÒ»ÌõsqlÓï¾äÇóÖú??Çë²Î¼ÓÒâ¼ûлл£¡£¡
±í½á¹¹
create table COSTUMER
(
ID VARCHAR2(9), //idºÅ
NAME VARCHAR2(18), SEX CHAR(1),
SALARY NUMBER(6,2), //¹¤×Ê
BIRTHDAY DATE //ÈÕÆÚ
)
ID NAME SEX SALARY BIRTHDAY
2 Íõѩ÷ 0 2000 2010-3-1
1 ÁõÏé 1 1000 2010-3-10
1 ÁõÏé 1 1500 2010-3-1
3 0 2010-3-16
1 ÁõÏé 1200 2010-3-25
sql
select c.id,count(c.id),max(c.birthday)from costumer c group by c.id;
ÏëµÃµ½ÈçϽá¹û:
¼È£¨Ã¿¸öid¶ÔÓ¦×î´óÈÕÆÚ£¬ºÍ×î´óÈÕÆÚ¶ÔÓ¦µÄ¹¤×Ê,»¹ÓжԾÍÿ¸öidµÄ¼Ç¼×ÜÌõÊý£©
ID COUNT(C.ID) MAX(C.BIRTHDAY) ¹¤×Ê
2 1 2010-3-1 2000
1 3 2010-3-25 1200
3 1 2010-3-16
Çë´ó¼ÒÖú棡£¡£¡Ð»Ð»
SQL code:
with COSTUMER as
(
select 2 ID ,'Íõѩ÷' name, 0 sex, 2000 salary,to_date('2010-3-1','yyyy-MM-dd') birthday from dual union all
select 1 ID ,'ÁõÏé' name, 1 sex, 1000 salary,to_date('2010-3-10','yyyy-MM-dd') birthday from dual union all
select 1 ID ,'ÁõÏé' name, 1 sex, 1500 salary,to_date('2010-3-1','yyyy-MM-dd') birthday from dual union all
select 3 ID ,'ÈøÈö' name,1 sex, 1200 salary,to_date('2010-3-16','yyyy-MM-dd') birthday from dual union all
select 1 ID ,'ÁõÏé' name,0 sex, 1100 salary,to_date('2010-3-25','yyyy-MM-dd') birthday from dual
)
select i
Ïà¹ØÎÊ´ð£º
ÎÒÓÐÒ»¸ö±í£¬½á¹¹ÊÇÕâÑù¡£
ת³ö µ¥Î» תÈ뵥λ ±ÊÊý ½ð¶î
date(Ö÷) outid(Ö÷) inid(Ö÷) num amt
2009 1 2 1 500 Ϊ 1 µ¥Î» ÔÚ2009Ä ......
¿ÉÄÜÒòΪ¹¤×÷µÄÔÒò ½Ó´¥Êý¾Ý¿âÕâ¿é±È½ÏÉÙ£¬Ö®Ç°¶¼ÊÇ×ö³ÌÐòÕâ¿é£¬Êý¾Ý¿âÕâ¿é¶¼ÓÐרÃŵÄÈËÀ´×ö ·Ö¹¤¶¼ºÜÃ÷ϸ ËùÒÔ¶ÔÊý¾Ý¿âÕâÒ»¿éÍêÈ«²»Á˽⡣ǰ¶Îʱ¼ä È¥ÃæÊÔÁ˼¸¼Ò¹«Ë¾ ¼¸ºõ¶¼ÊÇÔÚÊý¾Ý¿âÕâ¿é¹ÒµôµÄ Á¬¸ö¼òµ¥µÄSQ ......
×Ö¶Î1,×Ö¶Î2.....×Ö¶ÎN,Status,ParentID
1,Name1....test1,1,99
1,Name1....test1,3,99
1,Name2....test2,1,101
1,Name2....test2,3,101
1,Name3....test3,2,101
1,Name1....test1,4,101
ÏëÒªµÄ½á¹ûÊÇ:
1,Na ......
oracleµÄ°²×°ºÍʹÓö¼ºÜÄÑÂð£¿ÔÀ´Ê²Ã´¶¼²»»áʱѧÁËMySQL£¬Ò²Ã»Ôõôѧ¹ý£¬¾Í×Ô¼º×°¼¸´Î£¬Óü¸Ï£¬¾Í´ïµ½ÁË´óÌåÄÜʹÓõij̶ÈÁË£¬¿ÉÊÇoracleµ½ÏÖÔÚ²»»á×°²»»áÓ㬲»»áÅ䣬ÎÒ¾ÍÏë×°¸öoracle£¬È»ºó½¨¸öÊý¾Ý¿â£¬ÀïÃæÓм¸Õ ......